Electronic keyboard musical instrument
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Description
FIG. 1 is a top front perspective view of an electronic keyboard musical instrument showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a right side elevational view; and,
FIG. 7 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
D289411 | April 21, 1987 | Bellini |
D289412 | April 21, 1987 | Bellini |
D290370 | June 16, 1987 | Bellini |
D317774 | June 25, 1991 | Mizushima |
D317931 | July 2, 1991 | Koide et al. |
D318058 | July 9, 1991 | Koide |
D320032 | September 17, 1991 | Hoshina |
4635521 | January 13, 1987 | Bellini |
721750 | August 1987 | JPX |
- Hong Kong Toys, 1987, p. 90, (Keyboard, centre at the page). Evans Catalog, 1987-1988, p. 311 (Casio Keyboard). Music Trades, Apr. 1989, p. 24 (Yamaha DSR-2000 Electronic Keyboard).
Patent History
Patent number: D325597
Type: Grant
Filed: Jun 21, 1990
Date of Patent: Apr 21, 1992
Assignee: Yamaha Corporation (Shizuoka)
Inventor: Nobuki Sakagami (Tokyo)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 7/541,345
Type: Grant
Filed: Jun 21, 1990
Date of Patent: Apr 21, 1992
Assignee: Yamaha Corporation (Shizuoka)
Inventor: Nobuki Sakagami (Tokyo)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 7/541,345
Classifications